#include <Eigen/Dense>
#include <iostream>

using namespace Eigen;

int
main()
{
	MatrixXd m(2, 5);
	m.resize(4, 3);
	std::cout << "The matrix m is of size " << m.rows() << "x" << m.cols() << std::endl;
	std::cout << "It has " << m.size() << " coefficients" << std::endl;
	VectorXd v(2);
	v.resize(5);
	std::cout << "The vector v is of size " << v.size() << std::endl;
	std::cout << "As a matrix, v is of size " << v.rows() << "x" << v.cols() << std::endl;
}
